There are
1,913 mi
from San Marcos, CA to Pascagoula, MS
That's the driving distance. It would take 1 day 9 hours to go from San Marcos, California to Pascagoula, Mississippi.
The flight distance (direct flight from San Marcos, CA to Pascagoula, MS) is 1,686.53 mi.
1,913 mi = 1.61 kms